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724 MikroKera 4L Hydrogen Sensor

Sensor Features

  • High sensitivity to hydrogen
  • Fast response time (T90 <15 seconds at 100 ppm)
  • Environmental temperature range of -20 to 50°C
  • Thermistor heater allows active control of sensor temperature based on environmental temperature
  • Environmental humidity range of 0 to 95% RH, non-condensing

Electrical Characteristics

Property Symbol Value Remarks
Heater Power Consumption PH ~125 mW Continuous at VH = 1.45
Heater Voltage VH 1.45 VDC Tsensor ~ 190°C
Heater Resistance RH 10Ω ± 1.0 Ω At room temperature
Sensing Voltage VC 2.0 VDC Recommended
Resistance in Air Ra 500 kΩ/50 MΩ Min/Max
Resistance in 500 ppm H2 R500 5 kΩ/500 kΩ Min/Max
Sensitivity Ra/R500 50 Min